This DPMS AP4 AR-15 Carbine Kit includes everything needed to turn your stripped AR-15 Lower Receiver into a complete, ready to shoot, fully functional rifle. This kit features an unassembled DPMS AP4 A3 Flat-Top Upper Receiver with Detachable Carry Handle, a 16" M4 Contour Barrel, Standard Phosphated Bolt Carrier Assembly, Carbine-Length gas system, fixed A2 Front Sight Assembly, 2-Piece Glacierguard Handguards and an A2 Flash Hider. The barrel's 5.56x45mm NATO Chamber, M4 Feed Ramps and 1 in 9" Twist rifling. The AP4 is a lightweight, economical upper configuration with the styling of the military's M4 carbine, and would be an excellent choice for a shooter's first build project or to fill the role of a general purpose carbine.

The AP4 kit includes a complete Lower Receiver Parts Kit that is ready for installation into any standard AR-15 stripped lower. A DPMS Collapsible Buttstock Assembly rounds out the package with a 6-Position Commercial diameter buffer tube, carbine buffer and buffer spring. Stripped lower receiver and magazines are NOT included. All parts, including the upper receiver, require user assembly.